Morphometric evaluation of Papanasam and Manimuthar watersheds, parts of Western Ghats, Tirunelveli district, Tamil Nadu, India: a GIS approach

Magesh, N.S.; Chandrasekar, N.; Soundranayagam, John Prince

doi:10.1007/s12665-010-0860-4

Cited by 242 publications

(109 citation statements)

References 13 publications

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“…Therefore geomorphometric indices and parameters have been widely employed to investigate the sustainable development of natural resources. Morphometric characteristics of a watershed are significant for assessing surface water resources and groundwater potential [2] [3]. Geomorphometric properties are also essential for proper utilization of land and water resources of a catchment for optimum production with minimal environmental hazards (i.e.…”

Section: Introductionmentioning

confidence: 99%

“…Geomorphometric properties are also essential for proper utilization of land and water resources of a catchment for optimum production with minimal environmental hazards (i.e. severe soil erosion, high sediment yield rates, landslide activity and flooding)to protect the people who live across the catchment, or in occupied areas near the outlet of a watershed [3] [4] [5] [6]. Morphometry refers to the measurement and evaluation of the configuration of the earth's surface, including the shape and dimensions of its landforms, and different aspects of drainage basins [7].…”

Section: Introductionmentioning

confidence: 99%

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Morphometric Assessment of Wadi Wala Watershed, Southern Jordan Using ASTER (DEM) and GIS

Farhan¹

2017

JGIS

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Morphometric analysis is of vital concern to understand hydromophological processes in a given watershed, and thus, it is a priority for assessing water resources in drainage basins. A morphometric analysis was conducted to identify the drainage properties of Wadi Wala and the 23 fourth-order subbasins. ASTER DEM data was employed to compile slope, elevation, and aspect maps. Arc GIS software was used to measure and calculate basic, derived and shape morphometric parameters. W. Wala is found to be a sixth-order drainage basin, and the drainage pattern is trellis to sub-trellis in the central and lower part of the catchment, whereas it is dendritic to sub-dendritic pattern in the southern and northern parts. The slopes of the catchment vary from 0˚ -5˚ to >35˚ in slope categories. Tectonic uplifting and tilting, lithology, structure and rejuvenation are the major factors controlling morphological variation over the watershed. The recognized fault systems are chiefly controlling the drainage pattern, and the elongated shape of the sub-basins is attributed to dense lineaments in the central and eastern parts of the watershed. The R b values for the entire catchment and the sub-catchments range from 2 to 7, with a mean of 4.55, which indicates the distortion of drainage pattern by geological structure. Hypsometric integral values are high for the W. Wala watershed and the sub-basins, where it ranges from 70% to 89%. High HI values indicate that drainage basins are at the youth-age stage of geomorphic development, and they are affected by tectonic uplifting, tilting, and the dominance of hillslope process. Variation in HI values is apparent between sub-basins located at the western part, or, the rejuvenated belt where HI values range from 85% to 89%. Whereas the HI values of the sub-basins located at the eastern part of the watershed, vary from 70% to 84%. Regression analysis reveals that R 2 values, which represent the degree of control of driving pa- Y. Farhan respectively (where the F-value is significant at 0.1% and 0.5% levels). Such results imply that the height of local base level (m), and the mean height (m) are the only morphometric driving parameters which have significant control on HI values in the W. Wala watershed. High annual soil loss and sediment load estimated recently, denote that the catchment is highly susceptible to surface erosion at present. Hence, the present study, and the resultant information would help to plan for efficient soil and water conservation measures to reduce soil erosion rates, conserve water, and to control sediment into W. Wala dam.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Morphometric Assessment of Wadi Wala Watershed, Southern Jordan Using ASTER (DEM) and GIS

Farhan¹

2017

JGIS

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“…Morphometric characteristics are used to investigate watershed delineation, site selection in water recharge and discharge, runoff modelling and other geomorphological studies (Sreedevi et al, 2013;Elhag, 2015). GIS helps with a wide variety of basin characterization and evaluation applications under different terrain conditions (Pankaj and Kumar, 2009;Magesh et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Understanding of morphometric features for adequate water resource management in arid environments

Elhag

Galal

Alsubaie

2017

Geosci. Instrum. Method. Data Syst.

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Abstract. Hydrological characteristics such as topographic parameters, drainage attributes, and land use/land cover patterns are essential to evaluate the water resource management of a watershed area. In the current study, delineation of a watershed and calculation of morphometric characteristics were undertaken using the ASTER global digital elevation model (GDEM). The drainage density of the basin was estimated to be very high, which indicates that the watershed possesses highly permeable soils and low to medium relief. The stream order of the area ranges from first to sixth order, showing a semi-dendritic and radial drainage pattern that indicates heterogeneity in textural characteristics, and it is influenced by structural characteristics in the study area. The bifurcation ratio (Rb) of the basin ranges from 2.0 to 4.42, and the mean bifurcation ratio is 3.84 in the entire study area, which signifies that the drainage pattern of the entire basin is controlled much more by the lithological and geological structure. The elongation ratio is 0.14, which indicates that the shape of the basin has a narrow and elongated shape. A land use/land cover map was generated by using a Landsat-8 image acquired on 10 August 2015 and classified to distinguish mainly the alluvial deposit from the mountainous rock.

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“…But, also quite often, basin discharge measurements are not readily available for statistical analysis. This lack of information can be satisfactorily overcomed in most instances by using basin delineation and drainage morphometric analyses which provide resources for describing the hydrological behavior of a basin and are a prerequisite for runoff modeling (Magesh et al, 2011;Thomas et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Morphometric analysis of river basins using GIS and remote sensing of an Andean section of Route 150, Argentina. A comparison between manual and automated delineation of basins

Angillieri¹,

Fernández²

2017

Rev. Mex. Cien. Geol.

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A morphometric analysis using Geographic Information System and Remote Sensing tools was performed to study the Agua Negra River basin, in the Central Andes of western Argentina. Well-delineated drainage basin boundaries are a critical factor in numerous natural resources studies such as flood assessment, water-usage, basin protection, preservation, planning, and resources management. In spite of their advantages, morphometry and automatic delineation of basins have rarely been applied in western Argentina. Through such an approach, the current study has successfully used computer-assisted methods and digital elevation models to delineate 17 basins through which a section of International 150 road passes. The resulting automated delineations were later compared with digital-manual delineations made with digital satellite imagery and topographic maps. The computer-assisted delineation compared very well to the digital-manual delineations, generally following drainage divides. The work load (including reprocessing and editing) was sharply decreased with the DEM computer-assisted delineating method, because digitally derived polygonal sub-basins areas were delineated in shorter times than those of the conventional manual method. Statistically, the absolute difference between computer-assisted and manually-derived basin area delineations was 5.29 percent, in average, on a range of 0.50 -13.83 percent. In addition, a peak discharge analysis has been done as well. The slight differences in some results were irrelevant, when realizing the amount of resources and time saved with the automated techniques.Key words: basin delineation; morphometry; DEM; GIS; Argentina. RESUMEN Se presenta un análisis morfométrico de cuencas en los Andes

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Morphometric evaluation of Papanasam and Manimuthar watersheds, parts of Western Ghats, Tirunelveli district, Tamil Nadu, India: a GIS approach

Cited by 242 publications

References 13 publications

Morphometric Assessment of Wadi Wala Watershed, Southern Jordan Using ASTER (DEM) and GIS

Morphometric Assessment of Wadi Wala Watershed, Southern Jordan Using ASTER (DEM) and GIS

Understanding of morphometric features for adequate water resource management in arid environments

Morphometric analysis of river basins using GIS and remote sensing of an Andean section of Route 150, Argentina. A comparison between manual and automated delineation of basins

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